Diary
MLA
O'Neill, Eugene, 1888-1953. Diary. Box 86, folder 1508. 1940. https://collections.library.yale.edu/catalog/32480653.
APA, 6th edition
O'Neill, Eugene, 1888-1953. (["Box 86, folder 1508"])(1940)[Diary]. https://collections.library.yale.edu/catalog/32480653.